Search results

Mixed logit models can represent heterogeneity across individuals, in both observed and unobserved preferences, but require computationally expensive calculations to compute probabilities. A few methods for including error covariance heterogeneity in a closed form models have been proposed, and this paper adds to that collection, introducing a new form of a Network GEV model that sub-parameterizes the allocation values for the assignment of alternatives (and sub-nests) to nests. This change allows the incorporation of systematic (nonrandom) error covariance heterogeneity across individuals, while maintaining a closed form for the calculation of choice probabilities. Also explored is a latent class model of nested models, which can similarly express heterogeneity. The heterogeneous models are compared to a similar model with homogeneous covariance in a realistic scenario, and are shown to significantly outperform the homogeneous model, and the level of improvement is especially large in certain market segments. The results also suggest that the two heterogeneous models introduced herein may be functionally equivalent.

This paper provides a critical review of “Defensible Space” (Newman, 1973) and traces the development of Crime Prevention Through Environmental Design (CPTED) in America and Canada, and Secured By Design (SBD) initiatives in the UK. It is argued that various aspects of the theory have avoided consideration and require further investigation and research. It is opined that “defensible space” is the theoretical foundation to both CPTED and SBD and it is posited that a thorough re‐examination of Newman’s ideas will serve to deepen our understanding of the complex relationship between the built environment and crime. British (BS8220) and European (CEN TC/325) Standards relating to urban planning and environmental design and crime reduction are currently receiving detailed deliberation and are based firmly upon Newman’s ideas. The projected need for some 4.4 million new homes in Britain (DOE, 1995) by 2016 and Lord Roger’s call for improvements in urban design to reduce suburban migration from cities (DETR, 1999) reiterates the importance of the subject matter. This paper (the first of two) recognises that design per se does not represent the panacea for reducing criminogeneity, rather, that “defensible space” CPTED and SBD should be considered as crime prevention strategies, which can, in common with all other initiatives, contribute to tackling the problem of residential crime. In conclusion, it is argued that further research concerning how “defensible space” is perceived by various crucial stakeholders in society is the way forward in this regard. A second, forthcoming paper (PM, Vol. 19 No. 3) will present these research findings.

Games are rapidly becoming a site where cultural ideas are explored and consumed and have recently become an arena for debate around representations of gender. This chapter draws attention to key debates occurring in the field of video games that are also applicable to film studies. This interdisciplinary approach demonstrates the relevance to game studies of a rich vein of scholarship on the gendered action body in film studies. Drawing on research by Yvonne Tasker (1993, 2015), Lisa Purse (2011) and Jeffrey Brown (2011), this chapter seeks to unpick the tensions around gender and violence in the reception of The Last of Us Part II (Naughty Dog, 2020), particularly regarding the surprisingly vehement backlash against the unconventionally muscular deuteragonist Abby.

This chapter asks what happens when the ‘spectacular’ and ‘hard’ bodies of the action heroine enter the soft virtual world of the video game. A focus on whether Abby's body is realistic in the reception of the game leads to a discussion of the ontological status of games as a virtual medium. I argue that the process of motion capture and the real-world reference of CrossFit athlete Colleen Fotsch trouble the conventional dichotomy that understands the medium of games as virtual and film as indexical. Throughout, I use the more ambiguous and ambivalent historical reception of the body of Lara Croft as a useful point of contrast. I argue that the obsessive, hysterical response to Abby's muscular body is indicative of larger tensions between conservative ‘hardcore’ fandoms and the industry's recent drive for progressive change. By denying Abby's authenticity such players also deny female access to traditional masculine pursuits and identities, whether that be bodybuilding or gaming. This is because virtual female action stars, just as much as their real-world counterparts such as Linda Hamilton, trouble the gendered norms that underpin both second-wave feminist accounts of muscular women and the audience of hardcore video game players. As Fron, Fullerton, Morie, and Pearce (2007) critique in their article ‘The Hegemony of Play’, a double standard therefore exists in which such women must justify the reality of their musculature through a kind of ‘proof of process’. Ultimately, I conclude that a similar demand is made of the emergent female audience of gamers, who are continuously made to justify their right to play in a traditionally male space.

Students with disabilities have many obstacles to overcome and challenges to address as they go through the educational system. Besides challenges with academics, behavior, and social situations, these students also need to be able to transition throughout their educational careers from different grade levels to post-school outcomes. Transition for students with disabilities should include input from classroom teachers, school psychologists and other related school personnel, families, the community, and, of course, the student. Specifically, the student should be an integral part of the transition process and planning. This chapter focuses on transition in general, discusses data from the National Longitudinal Transition Study-2, and sets the stage for the rest of this volume.

Although in principle prior information can significantly improve inference, incorporating incorrect prior information will bias the estimates of any inferential analysis. This fact deters many scientists from incorporating prior information into their inferential analyses. In the natural sciences, where experiments are more regularly conducted, and can be combined with other relevant information, prior information is often used in inferential analysis, despite it being sometimes nontrivial to specify what that information is and how to quantify that information. In the social sciences, however, prior information is often hard to come by and very hard to justify or validate. We review a number of ways to construct such information. This information emerges naturally, either from fundamental properties and characteristics of the systems studied or from logical reasoning about the problems being analyzed. Borrowing from concepts and philosophical reasoning used in the natural sciences, and within an info-metrics framework, we discuss three different, yet complimentary, approaches for constructing prior information, with an application to the social sciences.

Currently, students with learning disabilities make up the largest group of students receiving special education services across the country. To understand the themes and dimensions of learning disabilities, it is important to explore the historical progression of learning disabilities over time, including characteristics and outcomes of these students. This chapter will provide readers with in-depth information on the characteristics, national representation, demographics, and educational and long-term outcomes of students with learning disabilities.